TY  - BOOK
AU  - Winchell, Alexander N .
TI  - Elements of Optical Mineralogy
U1  - 553.28 
PY  - 1968///
CY  - New Delhi
PB  - Wiley Eastern
KW  - Optical Mineralogy
KW  - G- T/G
KW  - T/G-Geology
ER  -